<?php
	include "../functions.php";
	$html = file_get_contents("3.1.php");
	$preg = '/<p>(.*?)(<\/p>)/is';// . 除了换行符
	preg_match_all($preg,$html,$arr);
	$html = preg_replace($preg, '<p style="background:#f00;color:#000;">\1\2', $html);
	echo $html;

?>